Communication over Internet and GSM using Smart Doorbell

This paper presents the concept of enabling communication between a visitor at the door of a house and its owner in a situation when the owner is not available at home. There are no smart and convenient ways, at present, for the the owner to be notified about the presence of a visitor at his/her door. The world of ‘Internet of Things’ with Raspberry pi at its core allows a fascinating scope to ensure the same. Embedding a standard household doorbell into IOT and GSM network, the system provides a set of features which ensure that no visitor is left unattended or goes unnoticed by the owner of the house in cases when he or she is at work, out of station or just taking a nap on a lazy afternoon. As smarter living is at the core of this project, the system also recognizes and distinguishes the user’s family and friends and therefore does not bother the user with any unrequired notifications.